| horrendous(adjective, dull, plain, terrible) | |
| horrific(adjective, dull, plain, terrible) | |
| second-rate(adjective, feature, dull, poor) | |
| ugly(adjective, feature, dull, great) | |
| appalling(adjective, effect, badness, feature, dull) | |
| nasty(adjective, calm, good, dull) | |
| obnoxious(adjective, dull, plain, terrible) | |
| painful(adjective, dull, plain, terrible) | |
| detestable(adjective, dull, plain, terrible) | |
| disgraceful(adjective, dull, plain, terrible) | |
| grievous(adjective, dull, plain, terrible) | |
| gruesome(adjective, dull, plain, terrible) | |
| heartbreaking(adjective, dull, plain, terrible) |
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| APA | Smart Define. (2016). wonderful thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/wonderful/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "wonderful thesaurus" https://smartdefine.org/wonderful/thesaurus/antonyms (accessed October 1, 2026). |
| Harvard | Smart Define 2016, wonderful thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/wonderful/thesaurus/antonyms>. |
| MLA | Smart Define. "wonderful thesaurus" 29 March 2016. Web. 1 October 2026. <https://smartdefine.org/wonderful/thesaurus/antonyms> |